My 2070 super has been hitting 60fps full setting, no problem, no temp issues, no dead gpu.
There have been problems with the 3000 line since they released, only thing is, no one could get their hands on them so no one really noticed. I think the core problem is Nvidia learned last minute how good AMD's RDNA2 was, and they simply overclocked the 3000 series past the point of safety in response; combined with some piss poor coding by amazon in the loading screen (the fps isn't capped, no matter what your ingame, or driver settings are) and you get gpus combusting.